NXP Semiconductors has launched a new IC GreenChip TEA1733, which it claims to increases energy efficiency and standby performance of power supplies under 75W.
The company said that the new offering is designed specifically for low-power computing and communication applications such as netbook adapters, printer adapter and LCD monitor supplies. It is a Switched Mode Power Supply (SMPS) controller IC that enables standby power levels less than 100mW.
The TEA1733 requires a low start-up current of 10µA and consumes a supply current of 1.25mA. The combination of fixed frequency operation at high output power and frequency reduction at low output power provides high efficiency over the total load range, the company claims.
The company claims that the new offering enables a compact and lighter power supply design with reduced number of external components in the SMPS. It is available in a safe restart protection version as TEA1733 and in a latched protection version as TEA1733 (L).
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According to NXP Semiconductors, the new offering features large input voltage range; low supply current during start-up and restart; fixed switching frequency with frequency jitter to reduce EMI; frequency reduction with fixed minimum peak current at low power operation; adjustable OverCurrent Protection (OCP) trip level; and IC overtemperature protection.
Edwin Kluter, marketing director of power solutions at NXP Semiconductors, said: “ The GreenChip TEA1733 enables new levels of energy efficiency in low-power applications. By reducing the number of external components needed, the TEA1733 allows OEMs to become more cost competitive while maintaining a high degree of quality and reliability.”
